public CandidateController(ICandidateDataRepository candidateRepository, ICompetencyDataRepository competencyRepository)
 {
     this.candidateRepository  = candidateRepository;
     this.competencyRepository = competencyRepository;
 }
 public CandidateController()
 {
     candidateRepository  = new CandidateDataRepository();
     competencyRepository = new CompetencyDataRepository();
 }